http://archive.indystar.com/VideoNetwork/3037411629001/Fog-may-have-factored-into-massive-Texas-pile-uphttp://bc_gvpc_od-f.akamaihd.net/media/963482463001/201401/2098/963482463001_3037296854001_fe82242a-2609-4570-acfb-20e4ac990d0b.mp4?pubId=35547429001&videoId=3037411629001http://archive.indystar.com/VideoNetwork/3037411629001/Fog-may-have-factored-into-massive-Texas-pile-uphttp://bc_gvpc.edgesuite.net/img/963482463001/201401/394/963482463001_3037256639001_thumbnail-for-video-3037242082001.jpgFog may have factored into massive Texas pile-upA pile-up involving a tractor-trailer and a dozen other cars shut down traffic on Interstate 30 in Texas for hours Friday. Officials think fog was to blame.4travelbestinterstatehighwaytexasfog causes pileupiwfaatraffic30fogRowletttractor trailerweatherNational Newscrash03:11